V2EX ptosis

Ptosis

释义 Definition

ptosis 指“下垂”,最常见用法是上睑下垂(上眼睑下垂,导致眼睛看起来半睁或遮挡视线)。在医学语境中也可泛指某些器官或组织的下垂/脱垂(较少见于日常英语)。

发音 Pronunciation (IPA)

/toss/

例句 Examples

She was diagnosed with mild ptosis in her left eye.
她被诊断为左眼轻度上睑下垂。

After the stroke, the patient developed ptosis and double vision, suggesting involvement of the third cranial nerve.
中风后,患者出现上睑下垂和复视,提示可能累及第三脑神经(动眼神经)。

词源 Etymology

来自希腊语 ptōsis(πτσι),原意为“跌落、下落”,在医学拉丁语中逐渐固定为“某部位的下垂/脱垂”。因此它在临床英语里常与眼睑、器官位置改变等描述相关。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Gray’s Anatomy(《格雷解剖学》):在眼睑与眼眶相关章节中讨论上睑下垂的解剖与临床表现。
  • Harrison’s Principles of Internal Medicine(《哈里森内科学》):在神经系统体征与相关疾病中提及 ptosis(如动眼神经麻痹、重症肌无力等)。
  • Adams and Victor’s Principles of Neurology(《亚当斯与维克多神经病学原理》):在脑神经病变与眼部体征部分使用 ptosis 作为重要体征术语。
  • Oxford Handbook of Ophthalmology(《牛津眼科学手册》):在眼睑疾病与检查部分对 ptosis 的分型、评估与处理进行说明。
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